CVE-2021-44758

Heimdal before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value to send_accept.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580	Patch Third Party Advisory
https://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv	Third Party Advisory
https://security.gentoo.org/glsa/202310-06
https://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580	Patch Third Party Advisory
https://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv	Third Party Advisory
https://security.gentoo.org/glsa/202310-06

Configurations

Configuration 1 (hide)

cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:31

Type	Values Removed	Values Added
References	~~() https://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580 - Patch, Third Party Advisory~~	() https://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580 - Patch, Third Party Advisory
References	~~() https://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv - Third Party Advisory~~	() https://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv - Third Party Advisory
References	~~() https://security.gentoo.org/glsa/202310-06 -~~	() https://security.gentoo.org/glsa/202310-06 -

08 Oct 2023, 09:15

Type	Values Removed	Values Added
References		(MISC) https://security.gentoo.org/glsa/202310-06 -

Information

Published : 2022-12-26 05:15

Updated : 2025-04-14 16:15

NVD link : CVE-2021-44758

Mitre link : CVE-2021-44758

CVE.ORG link : CVE-2021-44758

JSON object : View

Products Affected

heimdal_project

heimdal

CWE

CWE-476

NULL Pointer Dereference

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